“It’s related to the America’s Cup — we’ve seen a lot of cargo coming in.”

He was speaking a day after Stevedoring Services appealed to importers, forwarders and truckers to collect their goods quickly as the six-acre dock site was filled to capacity.

Mr Jones said: “The containers are not an issue, but we’ve seen an incredible amount of boats coming in and break-bulk. That’s anything not containerised — toilets, lifting equipment, tractors, anything other than containers.

“The containers you can stack, but you can’t stack cars and boats.”

Mr Jones added that the extra cargo was a safety hazard for dock staff.